I researched these forums and many others and have not seen anyone using a trickle filter for a hydro grow and wonder why. I've been a salt water aquarium hobbyist for years. A trickle filter achieves very high levels of oxygen saturated water in fresh and salt water. Air stones are considered very old technology for oxygenating water for fish health. Are there any aquarium hobbyist that have experimented with trickle filters for a hydro grow?